<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box1{
            width: 100px;
            height: 100px;
            background: pink;
            padding: 10px;
            border: 5px black solid;
            box-sizing: border-box;
        }
        .box2{
            width: 400px;
            height: 111px;
            padding: 20px 0;
            background: skyblue;
            box-sizing: border-box;
        }
        input{
            width: 100%;
            padding: 30px;
            box-sizing: border-box;
        }
    </style>
</head>
<body>
    <div class="box1">一个盒子</div>
    <div class="box2">
        个人信息
    </div>
    <input type="text">
</body>
</html>